factor affect strength of concrete during mixing

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Effect of Change in Mixing Time of Mixer on Wet Density ...

mix proportion, concrete is produced. The effect of mixing time on wet density, dry density, workability and compressive strength of concrete was experimentally studied and reported. At the time of production of concrete slump and compaction factor was recorded for measurement of workability of concrete.

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11 Factors that can Affect the Strength of Concrete

Factors that Affect the Strength of Concrete 01. Water/Cement Ratio The ratio of the weight of water to the weight of cement is called Water/Cement ratio. It is the most important factor for gaining the strength of concrete. The lower w/c ratio leads the higher strength of concrete. Generally, the water/cement ratio of 0.45 to 0.60 is used.

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Top 15 Factors Affecting Strength of Concrete - PRODYOGI

The factors affecting the strength of concrete are mentioned below. These factors can be either dependent or independent of each other when comes to the concrete strength. Most of the factors are interrelated in certain means. The primary factor that has a higher influence on the strength of the concrete is the mix design factors. Each of them is mentioned and explained in …

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PROPERTIES AND MIX DESIGNATIONS - MnDOT

entrained air will have a lower strength than the sa me mix without entrained air, but the concrete can attain strengths required for most purposes by an increase in the cementiti ous factor of the mix or by reducing the water content. 5-694.213 STRENGTH The strength of concrete is the next important pr operty to consider.

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factor affect strength of concrete during mixing

Factors Affecting Workability of Concrete - CivilBlog.Org. Apr 4, 2014 . Workability is a property of freshly mixed concrete, and a concrete is a mixture of . of concrete, whether in fresh state or hardened state, is affected by these . through the joints of …

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factor affect strength of concrete during mixing

factor affect strength of concrete during mixing factor affect strength of concrete during mixing. the retempering of concrete by using . after the mix of the concrete . different depending on. …

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Factors affecting Concrete Mix Design - Happho

The relative proportions of the fine and coarse aggregates in a concrete mix are one of the important factors affecting the workability and strength of concrete. For dense concrete it is essential that the coarse and fine aggregates be well …

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Simplified: Factors Affecting the Quality of Concrete

The overall quality of concrete depends on the three stages of construction. Let me call it pre-construction, "during construction" and post-construction stages. The preparation and implementation of each stage are expected to comply with standards so that the expected quality is obtained. Failing to do so might lead to structural failure. The pre-construction stage of …

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factors affecting strength of concrete pdf

The primary factor that has a higher influence on the strength of the concrete is the mix design factors. Normally, concrete strength gets doubled after 11 years provided there ar

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What is Concrete Strength and what are the factors ...

By Er. Kaushal Kishore, Materials Engineer, Roorkee Concrete Strength Cement like water, aggregates and some times admixtures is one of the ingredient of concrete. The mixing of these materials in specified proportions produces concrete. Accordingly cement alone is not a building material, it is the concrete which is a building material. For a given […]

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Properties of Concrete every civil engineer must know

The strength of concrete is designated as the Characteristic compressive strength of 150mm cube at the age of 28 days when tested with the universal testing machine in N/mm 2. As grades of concrete vary between 15 to …

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Factors Affecting Strength of Concrete - The Constructor

Factors Affecting Strength of Concrete Concrete strength is affected by many factors, such as quality of raw materials, water/cement ratio, coarse/fine …

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Factors that affect the strength of concrete – Ledmain

Many factors affect the strength of concrete after mixing. Some of these are discussed below. Firstly, some definitions may be helpful: The process of 'setting' and 'hardening' are often confused: The setting is a rigid concrete after it has been placed.

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Properties of Cement- Physical & Chemical - Civil …

Various factors affect the strength, such as water-cement ratio, cement-fine aggregate ratio, curing conditions, size and shape of a specimen, the manner of molding and mixing, loading conditions and age. While testing the …

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Strength development in concrete - Understanding Cement

Concrete strength. Many factors influence the rate at which the strength of concrete increases after mixing. Some of these are discussed below. First, though a couple of definitions may be useful: The processes of 'setting' and 'hardening' are often …

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Concrete mix design and Factors influencing mix design

Concrete mix design and Factors influencing mix design. The concrete mix design is a process of selecting suitable ingredients for concrete and determining their proportions which would produce, as economically as possible, a concrete that satisfies the job requirements, i.e. concrete having a certain minimum compressive strength, workability, and durability.

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Key Factors Affecting Strength of Concrete - Structural Guide

The water-cement ratio is one of the most important factors affecting strength of concrete. Depending on the water-cement ratio, the compressive …

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Admixtures for Concrete - Memphis

Admixtures are those ingredients in concrete other than portland cement, water, and aggre-gates that are added to the mixture immediately before or during mixing (Fig. 6-1). Admixtures can be classified by function as follows: 1. Air-entraining admixtures 2. Water-reducing admixtures 3. Plasticizers 4. Accelerating admixtures 5. Retarding ...

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Factors Affecting Concrete Mix Design - Structural Guide

The water-cement ratio is the first parameter we used when starting to work out the concrete mix design. This the dominant amongst all other factors affecting concrete mix design. The lower the water-cement ratio, the higher the strength of the concrete as the cement content increase compared to water content.

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Factors Affecting the Concrete Strength: Aggregate | by ...

Understanding the parameters, factors that affect the strength of the concrete is the most fundamental knowledge any civil engineer needs to have, no matter whichever branch of, if one wishes to work. And that is why we decided to do some research and add some information to this thread. Mostly, for my own future reference.

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Review on effect of steam curing on behavior of concrete ...

Other factors that affect the strength of concrete are w/b ratio, mineral admixture, and type of curing after steam curing. Curing period and temperature are normally adjusted according to the target (Erdogdu and Kurbetci, 1998, Gambhir, 2004, Sherman et al., 1996). 2.1. Effect of steam curing periods on strength of concrete

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8 FACTORS AFFECTING SETTING & HARDENING OF …

Factors Affecting the Setting and Hardening of Portland cement (1) The Impact of Cement's Composition. The mineral composition of cement and their ratios are the main factors affecting the setting and hardening of cement. As …

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Properties of Concrete in Construction | Professional ...

The average strength of concrete mixtures in shear varies from about half the compressive strength if the mixture is strong, to 0.8 of the compressive strength if the mixture is considered lean. Age and the Strength of Concrete. As part of the strength property of concrete, it is known in the industry that concrete only becomes stronger as it ages.

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Factors Affecting Workability of Concrete - Civil Engineering

Factors Affecting the Workability of Concrete Followings are the factors affect the workability of concrete. Water Content Mix Proportions Size of Aggregates Shape of Aggregates Grading of Aggregates Surface Texture of Aggregates Use of Admixtures Use of Supplementary Cementitious Materials Time Temperature

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Methods for Mixing of Concrete Their Procedure & …

Ready Mix Concrete (Mixing in automatic or semi-automatic batching plant) Different constructions require different type of concrete mixing. For the efficient result, using appropriate method of mixing of concrete for the specific …

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Effects of Mixing and Curing Temperature on the Strength ...

The aim of this work is to know clearly the effects of temperature in response to curing condition, hydration heat, and outside weather conditions on the strength development of high-performance concrete. The concrete walls were designed using three different sizes and three different types of concrete. The experiments were conducted under typical summer and …

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A study of factors affecting the flexural tensile strength ...

The results of flexural tensile strength experimental study are given in Table 2, Table 3, Table 4 for different concrete mixes at 7-days, 28-days and 56-days and specimens under different confinement. Table 5 depicts the level of concrete strength effect on the flexural tensile strength without confining conditions of concrete. It is clear that the flexural tensile strength …

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What are the Factors Affecting Workability of Concrete?

Factors affecting the workability of concrete are materials such as water content, cement concrete, sand and aggregate properties such as size, shape, grading, mix design ratio and use of admixtures. Each and every process and materials …

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Simplified: Factors Affecting the Quality of Concrete

The overall quality of concrete depends on the three stages of construction. Let me call it pre-construction, "during construction" and post-construction stages. The preparation and implementation of each stage are expected to comply with standards so that the expected quality is obtained. Failing to do so might lead to structural failure.

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Strength of Hardened Concrete | Building Materials ...

Factors Affecting the Results: One of the main factors that affect the rate of gain of strength is the fineness of cement. It has been observed that particles of cements over 40 micron in size contribute to the compressive strength of concrete only over long periods, while particles lower than 25 to 30 micron contribute to 28 days stren­gth.

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